A Couple Of Easy Questions

[the__apprentice]

Im doing some theory work for college and just want to run a couple of things by you guys if you dont mind:-

In Mr. Jones' house I need to add some lighting and power into a new shed, there is an existing shed about 500mm, what I was going to write down was:-

The picture shows the existing shed has power (socket, no light) from this I would extend the ring / radial into the new shed (using twin and earth linking the 2 sheds) to supply the new sockets, for the lighting I would incorporate a 13Amp fused spur and on the load side I would wire to a switch and then out to the new lights. (Again I would need to run the cable accross the gap between the 2 sheds)

Would that be ok?


Next, with bonding in the bathroom I read it should be connected to the lighting circuit, is this good practice or a requirement?

Thanks for your time

 

[JohnD]

Can you do my homework for me please?

 

[the__apprentice]

I was just asking in general if what I was putting down would be acceptable or not, Im not asking for the answers just some pointers.

Edit: just a thought would I be better off installing a piece of tube to protect the cables where they span accross the air?

As for the bonding its something I heard and not sure if I heard it correctly

 

[DESL]

Ok some pointers

Is the supply to the 1st shed adequate to extend to second shed.

Where is the origin of the 1 st shed.

Obviously you need to take into account external influences, mechanical protection, maximum demand etc etc

As for the bonding question check the OSG there are some pictures in there.

 

[the__apprentice]

thanks for your reply, yes the supply is adequate I was more after yes its ok to feed lights via a unswitched fused spur or no thats wrong?

 

[JohnD]

Lights should normally be fused at B6. If the shed supply has a socket it is probably in excess of that. So you need an FCU with a 3A or 5A cartridge. Also you need to know if the shed is watertight, if not, suitable equipment would be IP rated.

If the shed supply is not in suitable cable with suitable protection and an RCD, you might say it needs to be rectified before you do any work on it.

T&E should not be used outside as it degrades in sunlight and does not give adequate protection. SWA or concentric would be usual.

Without wishing to be needlessly rude, I think you need to lay your hands on some books, and study them. If you are at college your lecturer will be able to suggest some. If the cost is a worry you can usually borrow them from the library, or buy a second-hand copy from a dropout student.

 

[the__apprentice]

thanks for your comments, I take all your advice on board and will note the cables will pass through conduit between the sheds and the lighting will be fed via an unswitched fused spur (3A)

I will speak to the college, but Im doing distance learning, so everything is much harder

 

[securespark]

or buy a second-hand copy from a dropout student.

I've got a few!

 

[RF Lighting]

What, dropout students

 

[securespark]

Joke fell flat on its mush...

I meant I was a drop-out with a few spare books....